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The suspect pulled into the parking lot at Onondaga Lake Park, got out of his car and ran into the lake, Walsh said. Morris, Quigley and Monroe went into the 56-degree water after him, Walsh said.

The suspect dived underwater when the officers approached him in chest-deep water, the sheriff said. Quigley pulled him from the water and arrested him, Walsh said.

The names of the victims and suspect have not yet been released. Walsh would not immediately disclose a possible motive for the attacks.

The injuries to the third victim do not appear to be life-threatening, Deputy Herb Wiggins said.

The home where the stabbings occurred is close to Liverpool Elementary School and about a half-mile from the lake. The red home was covered with Halloween decorations and surrounded by yellow police tape.